diff options
Diffstat (limited to 'backends/msmouse.c')
| -rw-r--r-- | backends/msmouse.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/backends/msmouse.c b/backends/msmouse.c deleted file mode 100644 index d2c3162f1e..0000000000 --- a/backends/msmouse.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * QEMU Microsoft serial mouse emulation - * - * Copyright (c) 2008 Lubomir Rintel - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "sysemu/char.h" -#include "ui/console.h" -#include "ui/input.h" - -#define MSMOUSE_LO6(n) ((n) & 0x3f) -#define MSMOUSE_HI2(n) (((n) & 0xc0) >> 6) - -typedef struct { - Chardev parent; - - QemuInputHandlerState *hs; - int axis[INPUT_AXIS__MAX]; - bool btns[INPUT_BUTTON__MAX]; - bool btnc[INPUT_BUTTON__MAX]; - uint8_t outbuf[32]; - int outlen; -} MouseChardev; - -#define TYPE_CHARDEV_MSMOUSE "chardev-msmouse" -#define MOUSE_CHARDEV(obj) \ - OBJECT_CHECK(MouseChardev, (obj), TYPE_CHARDEV_MSMOUSE) - -static void msmouse_chr_accept_input(Chardev *chr) -{ - MouseChardev *mouse = MOUSE_CHARDEV(chr); - int len; - - len = qemu_chr_be_can_write(chr); - if (len > mouse->outlen) { - len = mouse->outlen; - } - if (!len) { - return; - } - - qemu_chr_be_write(chr, mouse->outbuf, len); - mouse->outlen -= len; - if (mouse->outlen) { - memmove(mouse->outbuf, mouse->outbuf + len, mouse->outlen); - } -} - -static void msmouse_queue_event(MouseChardev *mouse) -{ - unsigned char bytes[4] = { 0x40, 0x00, 0x00, 0x00 }; - int dx, dy, count = 3; - - dx = mouse->axis[INPUT_AXIS_X]; - mouse->axis[INPUT_AXIS_X] = 0; - - dy = mouse->axis[INPUT_AXIS_Y]; - mouse->axis[INPUT_AXIS_Y] = 0; - - /* Movement deltas */ - bytes[0] |= (MSMOUSE_HI2(dy) << 2) | MSMOUSE_HI2(dx); - bytes[1] |= MSMOUSE_LO6(dx); - bytes[2] |= MSMOUSE_LO6(dy); - - /* Buttons */ - bytes[0] |= (mouse->btns[INPUT_BUTTON_LEFT] ? 0x20 : 0x00); - bytes[0] |= (mouse->btns[INPUT_BUTTON_RIGHT] ? 0x10 : 0x00); - if (mouse->btns[INPUT_BUTTON_MIDDLE] || - mouse->btnc[INPUT_BUTTON_MIDDLE]) { - bytes[3] |= (mouse->btns[INPUT_BUTTON_MIDDLE] ? 0x20 : 0x00); - mouse->btnc[INPUT_BUTTON_MIDDLE] = false; - count = 4; - } - - if (mouse->outlen <= sizeof(mouse->outbuf) - count) { - memcpy(mouse->outbuf + mouse->outlen, bytes, count); - mouse->outlen += count; - } else { - /* queue full -> drop event */ - } -} - -static void msmouse_input_event(DeviceState *dev, QemuConsole *src, - InputEvent *evt) -{ - MouseChardev *mouse = MOUSE_CHARDEV(dev); - InputMoveEvent *move; - InputBtnEvent *btn; - - switch (evt->type) { - case INPUT_EVENT_KIND_REL: - move = evt->u.rel.data; - mouse->axis[move->axis] += move->value; - break; - - case INPUT_EVENT_KIND_BTN: - btn = evt->u.btn.data; - mouse->btns[btn->button] = btn->down; - mouse->btnc[btn->button] = true; - break; - - default: - /* keep gcc happy */ - break; - } -} - -static void msmouse_input_sync(DeviceState *dev) -{ - MouseChardev *mouse = MOUSE_CHARDEV(dev); - Chardev *chr = CHARDEV(dev); - - msmouse_queue_event(mouse); - msmouse_chr_accept_input(chr); -} - -static int msmouse_chr_write(struct Chardev *s, const uint8_t *buf, int len) -{ - /* Ignore writes to mouse port */ - return len; -} - -static void char_msmouse_finalize(Object *obj) -{ - MouseChardev *mouse = MOUSE_CHARDEV(obj); - - qemu_input_handler_unregister(mouse->hs); -} - -static QemuInputHandler msmouse_handler = { - .name = "QEMU Microsoft Mouse", - .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL, - .event = msmouse_input_event, - .sync = msmouse_input_sync, -}; - -static void msmouse_chr_open(Chardev *chr, - ChardevBackend *backend, - bool *be_opened, - Error **errp) -{ - MouseChardev *mouse = MOUSE_CHARDEV(chr); - - *be_opened = false; - mouse->hs = qemu_input_handler_register((DeviceState *)mouse, - &msmouse_handler); -} - -static void char_msmouse_class_init(ObjectClass *oc, void *data) -{ - ChardevClass *cc = CHARDEV_CLASS(oc); - - cc->open = msmouse_chr_open; - cc->chr_write = msmouse_chr_write; - cc->chr_accept_input = msmouse_chr_accept_input; -} - -static const TypeInfo char_msmouse_type_info = { - .name = TYPE_CHARDEV_MSMOUSE, - .parent = TYPE_CHARDEV, - .instance_size = sizeof(MouseChardev), - .instance_finalize = char_msmouse_finalize, - .class_init = char_msmouse_class_init, -}; - -static void register_types(void) -{ - type_register_static(&char_msmouse_type_info); -} - -type_init(register_types); |